Sun GlassFish Enterprise Server 2.1 Deployment Planning Guide

Stateful Session Bean Checkpointing

For SFSB session persistence, the load on HADB depends on the following:

Checkpointing generally occurs after any transaction involving the SFSB is completed (even if the transaction rolls back).

For better performance, specify a small set of methods for checkpointing. The size of the data that is being checkpointed and the frequency of checkpointing determine the additional overhead in response time for a given client interaction.